Expellant holders for stick material



March 30, 1965 E. FUGLSANG-MADSEN ETAL EXPELLANT HOLDERS FOR STICKMATERIAL Filed July 17, 1965 INVENTORS:

Er'l-k F Lscm 0 Bz avse. onb vg BY /S owwc ha/ 2 ATTORNEYS 3,175,680EXPELLANT HOLDERS FOR STICK MATERIAL Erik Fuglsang-Madsen, 7Vallerodgade, Rungsted Kyst, Denmark, and Biirge Monberg, KlinthojVange, Birkerod, Denmark Filed July 17, 1963, Ser. No. 295,627 2(Ilaims, (Cl. 206-56) This invention relates to expellant holders forsticks of expendable substance such as lipsticks and other applicativecosmetics.

Most expellant holders for lipsticks and the like cos metics used todaycomprise at least some parts made from metal even if other parts aremade from plastic. However, expellant holders are also known whichcomprise only all-part plastic parts. Such known holders are either verysimple holders only intended for medical lipsticks and the like sticksin connection with which the appearance of the holder is withoutimportance, or demand for their production expensive molds and aredifiicult to assemble wherefore their costs of production have been sohigh that they have found no or only very little use in practice.

An object of the invention is to provide an expellant holder which maybe composed by all-plastic parts and nevertheless be given an attractiveappearance and be composed of parts which are cheap to manufacture andcheap to assemble.

Another object of the invention is to provide an expellant holdercomprising a stick carrier slidably arranged within an inner sleeve andbeing provided with a side projection extending through a longitudinalslot in the inner sleeve and engaging a screw track formed in thecylindrical inner wall of an outer sleeve rotatably, but notlongitudinally displaceable surrounding the inner sleeve by which holderthe outer sleeve is retained on the inner sleeve only by means of aretaining ring which from above is pushed down along the outer side ofthe outer sleeve and is provided with an inwardly extending flangegripping over an outwardly extending flange on the outer sleeve toprevent an axial displacement of the outer sleeve, and which ring isitself secured to the lower end of the inner sleeve.

A further object of the invention is to provide an expellant holdercomprising only all-plastic parts each of which may be molded by meansof simple molds having no parts which have to be displaced transverselyto the longitudinal axis of the mold.

A still further object of the invention is to provide an expellantholder comprising only all-plastic parts without any part havingundercut portions such as circumferential inner or outer groovesdemanding deformation of another part of the holder during theassembling thereof.

The foreoging and other objects of the invention are referred to ingreater length in the following description of a preferred embodiment ofthe invention, in which description reference is made to theaccompanying drawings wherein FIG. 1 is 'a longitudinal sectional viewof a lipstick holder that incorporates the present improvements, and

FIG. 2 is a cross sectional view taken on the line II-II in FIG. 1.

The lipstick holder shown comprises a lipstick carrier 10, an innersleeve 12 provided with a base portion 14, an outer sleeve 16, aretaining ring 18 and a slip cap 21).

The carrier 10 consists of a cylinder 22 having a transverse middle wall24 provided with a center hole 26 serving for airing during theinsertion of the lipstick (not shown). To retain the lipstick in thecarrier the inner wall of the cylinder 22 is above the middle wall 24pronited States Patent "ice 3,175,680 Patented Mar. 30, 1965 vided withlongitudinally extending ribs 28. On its outer side the cylinder 22 isprovided with two cylindrical projeclltions or lugs 30 arrangeddiametrically opposite each ot er.

The inner sleeve 12 comprises a cylindrical thin-walled portion 32 atits lower end continuing into the somewhat thicker outer wall 34 of thecup-shaped base portion 14. The upper edge of the outer wall 34constitutes a thrust face surrounding the lower end of the cylinderportion 32. The cylinder portion 32 is provided with two oppositelyarranged longitudinal extending slots 38 extending over the whole lengthof the cylinder portion 32 and being open at the upper end thereof. Thelugs 30 on the carrier Iii extend through one each of the two slots 38.

The outer sleeve 16 is provided with a cylindrical wall 42 the innerdiameter of which is slightly larger than the outer diameter of thecylinder portion 32 of the inner sleeve 12 and the outer diameter ofwhich wall is somewhat smaller than the outer diameter of the baseportion 14. The cylindrical wall 42 is at its lower end provided with anoutwardly extending annular supporting flange 44 having an outerdiameter slightly smaller than the outer diameter of the base portion 14and the lower face of which flange 44 faces the thrust face 36. At itsupper end the cylindrical wall 42 is formed to provide an inwardlyextending flange 47 covering the upper edge of the cylinder portion 32of the inner sleeve and having an inner diameter at least equal to theinner diameter of the cylinder 22 of the stick carrier 10.

On its inner side the cylindrical wall 42 is provided with twooppositely arranged screw tracks 46 each curving helically along saidinner side and each having a pitch corresponding to, but preferablyslightly greater than the outer diameter of the outer sleeve and eachcomprising ring 18 which is provided with a cylindrical Wall 52 adaptedto grip closely round the outer side of the base portion 14. At itsupper end the wall 52 is provided with an inwardly extending flange 54arranged just above the upper side of the supporting flange 44 on theouter sleeve 16, but having an inner diameter slightly greater than theouter diameter of the cylindrical wall 42 so that it cannot pressagainst this wall. The flange 54 is disposed at a slight distance abovethe supporting flange 44 so that it cannot press against this flangeeither. Owing thereto the outer sleeve 16 may be displaced quite a smalldistance axially relative to the inner sleeve 12, but not more, however,than the outer sleeve may be said to be non-slidably relative to theinner sleeve.

The wall 52 is at its lower end provided with a somewhat thicker outerring portion 56 extending a small distance below the lower face of thebase portion 14. In the recess 53 thus formed there may be arranged alabel or the like, for example a plate having at least a portion havingthe same colour as the lipstick.

The retaining ring 56 has such an inner diameter that the ring may beclosely clamped on and thereby secured to the base portion 14.Preferably this may be obtained by shrinking, for example thereby thatthe inner diameter of the retaining ring 18 is slightly smaller than theouter side diameter of the base portion 14, and the retaining ring beingeither heated before its application or being made from a softer andmore yieldable plastic than the inner sleeve 12.

The slip cap 29 comprises a cylindrical portion 62 provided at the topwith an end closure portion 54. The lower end of the cylindrical portion62 grips round the wall 52 of the retaining ring 18 with a slightclamping effect so that the slip cap 20 is easy to detach and apply, butwhen applied is held firmly in position.

All the above described parts of the holder may most advantageously bemade from plastic by molding, and as appears from the drawing each ofsaid parts has a simple design and consequently requires only a simplernold in which it is easy to mold and from which it is easy to re movewhen molded.

Preferably the slip cap 20, the retaining ring 18 and the outer sleeve16 are on their outer sides provided with a thin metal coating,preferably applied by evaporation of metal in vacuum, which coating isreinforced as to wear with a lacquer coating. The outer sleeve and theslip cap may also as known per so be provided with an outer jacket ofmetal whereby, however, the manufacturing costs of the holder areessentially increased, but nevertheless are still kept below themanufacturing costs of hitherto known "holders having a similarattractive appearance.

There are possible departures from the exact constructions hereindisclosed in which the invention may be embodied and the followingclaims are directed to and intended to cover all such departures asfairly come within their terms.

What is claimed is:

1. An expellant holder for sticks of expendable substance, comprising incombination: a stick carrier, an inner sleeve provided with at least onelongitudinal extending slot; an outer sleeve rotatably mounted on saidinner sleeve and having an inner cylindrical wall provided with at leastone screw track curving helically along said wall; said stick carrierbeing displaceably arranged within said inner sleeve and being providedwith at least one outwardly extending side projection extending throughsaid slot and engaging said screw track; said inner sleeve beingprovided at its lower end with a base, said base at least including acylindrical portion having an outer face, said outer face having anouter diameter somewhat greater than the outer diameter of said outersleeve, said base portion outer diameter defining the major peripheraldimensions of said base, said base having a lower end, said base beingformed with an upwardly facing thrust face for the lower end of saidouter sleeve; said outer sleeve being provided at its lower end with anoutwardly extending annular supporting flange having a bottom faceconstituting the lower face of said outer sleeve and adapted to rest onsaid thrust face; said supporting flange having an outer diametersmaller than the said outer diameter of said base portion, aretainingring provided at its upper end with an inwardly extending annular ringflange having an inner diameter greater than said outer diameter of saidouter sleeve; said retaining ring having a cylindrical inner surfacehaving a diameter slightly less than said base portion outer diameter;said retaining ring having a lower portion secured to said base portionby clamping; said ring flange being arranged immediately above saidsupporting flange of said outer sleeve for preventing an upwardsdisplacement of said outer sleeve relative to said inner sleeve, saidretaining ring having a lower end, said retaining ring having such alength compared with the length of said base that said lower end of saidretaining ring extends below said lower end of said base.

2. An expellant holder as defined in claim 1, said lower end of saidbase and said lower end of said retaining ring defining between them arecess; said recess being filled out by label means.

References (Iited by the Examiner UNITED STATES PATENTS 2,318,152 5/43Gelardin 20656 2,380,338 7/45 Sherman 20656 2,442,109 5 48 Anderson20656 2,469,631 5/49 Broder 20656 2,595,403 5/52 Neuschaefer 206562,629,488 2/53 See 20656 2,642,390 6/53 Garofano 11738 2,655,261 10/53Clark 20656 2,858,015 10/58 Grisel 20656 2,982,397 5/61 Wahle 20656FOREIGN PATENTS 115,137 5/42 Australia. 512,961 2/55 Italy.

68,120 10/57 France. 877,404 9/61 Great Britain.

THERON E. CONDON, Primary Examiner.

1. AN EXPELLANT HOLDER FOR STICKS OF EXPANDABLE SUBTANCE, COMPRISING INCOMBINATION: A STICK CARRIER, AN INNER SLEEVE PROVIDED WITH AT LEAST ONELONGITUDINAL EXTENDING SLOT; AN OUTER SLEEVE ROTATABLY MOUNTED ON SAIDINNER SLEEVE AND HAVING AN INNER CYLINDRICAL WALL PROVIDED WITH AT LEASTONE SCREW TRACK CURVING HELICALLY ALONG SAID WALL; SAID STICK CARRIERBEING DISPLACEABLY ARRANGED WITHIN SAID INNER SLEEVE AND BEING PROVIDEDWITH AT LEAST ONE OUTWARDLY EXTENDING SIDE PROJECTION EXTENDING THROUGHSAID SLOT AND ENGAGING SAID SCREW TRACK; SAID INNER SLEEVE BEINGPROVIDED AT ITS LOWER END WITH A BASE, SAID BASE AT LEAST INCLUDING ACYLINDRICAL PORTION HAVING AN OUTER FACE, SAID OUTER FACE HAVING ANOUTER DIAMETER SOMEWHAT GREATER THAN THE OUTER DIAMETER OF SAID OUTERSLEEVE, SAID BASE PORTION OUTER DIAMETER DEFINING THE MAJOR PERIPHERALDIMENSIONS OF SAID BASE, SAID BASE HAVING A LOWER END, SAID BASE BEINGFORMED WITH AN UPWARDLY FACING THRUST FACE FOR THE LOWER END OF SAIDOUTER SLEEVE; SAID OUTER SLEEVE BEING PROVIDED AT ITS LOWER END WITH ANOUTWARDLY EXTENDING ANNULAR SUPPORTING FLANGE HAVING A BOTTOM FACECONSTITUTING THE LOWER FACE OF SAID OUTER SLEEVE AND ADAPTED TO REST ONSAID THRUST FACE; SAID SUPPORTING FLANGE HAVING AN OUTER DIAMETERSMALLER THAN THE SAID OUTER DIAMETER OF SAID BASE PORTION, A RETAININGRING PROVIDED AT ITS UPPER END WITH AN INWARDLY EXTENDING ANNULAR RINGFLANGE HAVING AN INNER DIAMETER GREATER THAN SAID OUTER DIAMETER OF SAIDOUTER SLEEVE; SAID RETAINING RING HAVING A CYLINDRICAL INNER SURFACEHAVING A DIAMETER SLIGHTLY LESS THAN SAID BASE OUTER DIAMETER; SAIDRETAINING RING HAVING A LOWER PORTION SECURED TO SAID BASE PORTION BYCLAMPING; SAID RING FLANGE BEING ARRANGED IMMEDIATELY ABOVE SAIDSUPPORTING FLANGE OF SAID OUTER SLEEVE FOR PREVENTING AN UPWARDSDISPLACEMENT OF SAID OUTER SLEEVE RELATIVE TO SAID INNER SLEEVE, SAIDRETAINING RING HAVING A LOWER END, SAID RETAINING RING HAVING SUCH ALENGTH COMPARED WITH THE LENGTH OF SAID BASE THAT SAID LOWER END OF SAIDRETAINING RING EXTENDS BELOW SAID LOWER END OF SAID BASE.